Seal-lock



(ModeL) 0. E. WHEATON.

SEAL LOOK.

No. 487,591. Patented Dec. 6, 1892.

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tion to the shape thereof.

UNITED STATES PATENT ()FFIGE.

ORSON E. WI-IEATON, OF GRUNDY CENTRE, IOIVA.

SEAL-LOCK.

SPECIFICATION forming part of Letters Patent No. 487,591, dated December6, 1892.

Application filed June 16, 1891 Serial No. 396,446. (ModeL) To all whomit may concern.-

Be it known that I, ORSON E. WHEATON, a citizen of theUnited States,residing at Grundy Centre, in the county of Grundy and State of Iowa,have invented certain new and useful Improvements in Seal-Locks; and Idohereby declare the following to be a full, clear, and exact descriptionof the invention,such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to seal-locks; and it consists of the construction,relative arrangement, and operation of the several parts, all of whichwill be fully and clearly explained, reference being had to theaccompanying drawings, in which Figure 1 illustrates my improved deviceas applied to a car-door. Fig. 2 is a sectional View taken in the line03 00, Fig. 1. Fig. 3 is a detail, enlarged, of the locking-pin; Fig. 4,a view in perspective of a seal-link; and Fig. 5 is a similar view,butshowing the form the link assumes when in position.

Referring to the several figures of the drawings, A denotes the hasp,which is secured at one end to the door by means of a suitable staple oreye a. The other end of the hasp is provided with the tongue 1), formedwith an opening I) therein and with a shouldered portion 11 said tongueand hasp being adapted to be inserted and held between the two ears 0 con the face-plate c, which is secured to the door-frame in any suitableor preferred manner. The space between the ears 0 c conforms in shape tothe tongue b, one of the ears 0 being provided with a shouldered portion0 which is slightly separated from the shouldered portion b when theparts are in their locked position. The ears 0 0 have openings thereinregistering with the opening in the tongue 1), although I prefer to makethe opening in the ear 0 of smaller size, as will be explained.

D is a locking-pin, which is adapted to be inserted within the openingsin the tongue and ears and which conforms in cross-sec- One end of thepin is provided with a head d, having a hole 11' therein for connectionwith a suitable chain, as shown. The other end is tapered as at (Z andfits the opening of reduced size in the ear 0'.

e e are jaws formed integral with the pin, the jaw e extending slightlyabove and over the jaw e and terminating at its base in a linecoincident with the base of the jaw 6, thereby forming asubstantially-triangularshaped opening, the purpose of which I will nowexplain.

f represents the seal-link, which is constituted of a strip of sheetmetal or other suitable material, which is cut through for a portion ofits length, as shown at f, thereby forming, when the parts areseparated, an endless link. The portion f of this link is adapted whenin operation to be inserted between the shouldered portions 1) 0 withthe other portion extending over the extension 5. The pin now beinginserted, the jaw e depresses the portion f of the link until it assumesthe shape shown in Fig. 5. It will now be found that the pin is held inposition by such link and is prevented from withdrawal by reason of thejaw 6.

By my invention I am enabled to manufacture very inexpensively aseal-lock which eifectively prevents the parts from being disengagedwithout destroying the lock or the link.

I claim In a seal-lock, the combination, with a hasp formedwith theshouldered tongue having the opening therein, of the locking-platehaving the ears, as described, one of which is shouldered and bothhaving openings, a locking-pin adapted to be inserted in such openingsand formed with the jaws, and a continuous flexible link adapted to bebent by one of these jaws and to lock the pin in position.

In testimony whereof I aftix my signature in presence of two witnesses.

ORSON E. WHEATON.

Witnesses: WILLIAM MEE,

H. S. BEOKMAN.

